发明人冯建国,孙丽萍,徐明华. "Method for the Synthesis of 1-(Pyridin-4-ylmethyl)piperidine-2-carboxylic acid dihydrochloride" [P]. 中国发明专利, 专利号 CN 113437953 B, 授权公告日 2019-08-15.
发明人胡光,黄志刚,徐明华. "A Process for Preparing High-Purity 1-(Pyridin-4-ylmethyl)piperidine-2-carboxylic acid dihydrochloride" [P]. 中国发明专利, 专利号 CN 115840459 B, 授权公告日 2019-05-26.
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